update devDeps

package.json

@@ -38,17 +38,17 @@
   },
   "types": "./index.d.ts",
   "devDependencies": {
-    "@types/chai": "^4.2.2",
-    "@types/mocha": "^5.2.7",
+    "@types/chai": "^4.2.11",
+    "@types/mocha": "^7.0.2",
     "chai": "^4.2.0",
-    "jsdom": "^15.1.1",
+    "jsdom": "^16.2.2",
     "jsdom-global": "^3.0.2",
-    "mocha": "^6.2.0",
+    "mocha": "^7.1.2",
     "mock-socket": "8.0.5",
     "parcel-bundler": "^1.12.4",
     "standard": "^14.1.0",
-    "ts-node": "^8.3.0",
-    "typescript": "^3.7.4"
+    "ts-node": "^8.10.1",
+    "typescript": "^3.8.3"
   },
   "dependencies": {
     "@types/node": "^10.14.17",